ناصر شابختی
گروه مهندسی عمران، دانشگاه سیستان و بلوچستان
[ 2 ] - Modeling of Epistemic Uncertainty in Reliability Analysis of Structures Using a Robust Genetic Algorithm
In this paper the fuzzy structural reliability index was determined through modeling epistemic uncertainty arising from ambiguity in statistical parameters of random variables. The First Order Reliability Method (FORM) has been used and a robust genetic algorithm in the alpha level optimization method has been proposed for the determination of the fuzzy reliability index. The sensitivity level ...
[ 3 ] - بررسی پاسخ سکوهای فراسـاحلی ثابت فلزی مجهز به آلـیاژ حافظه دار شکلی درعمق های مختلف تحت نیروی امواج
In this research, the response of fixed offshore platforms equipped with shape memory alloy elements at the different depths under extreme wave loading are taken into account. For this purpose platforms located in different water depths 70, 110 and 150 has been considered. At first for evaluation of the nonlinear behavior of three platforms, pushover analysis using SACS has been engaged. Then n...
[ 4 ] - Study of Fixed Jacket Offshore Platform in the Optimization Design Process under Environmental Loads
In the structural optimization problem, the aim is to decrease the amount of structural costs and weight, but the safety of platform should not violate the individual limits enforced by offshore codes. The outer diameter and thickness of members are two important variables in the optimization process and their final dimensions should be obtained according to the optimization algorithms such as ...
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